Kilnap Viaduct

Eight-arch railway viaduct, built 1845, carrying Great Southern & Western Railway line to Cork over valley of Glennamought River and Mallow Road. Rock-faced ashlar limestone piers with cut stone impost supporting squared coursed limestone spandrels with dressed limestone string course. Rock-faced limestone voussoirs to round-headed arches. Ashlar limestone vaults to barrels. Squared coursed limestone parapet with cut stone coping.

This impressive viaduct is among a group of railway structures dating to the mid nineteenth-century which attest to the high standard of engineering and stone masonry employed in their construction. The viaduct forms an impressive addition to the landscape with the variety of stone treatments used adding a sense of permanence and robustness. The development of a vast railway network across Ireland during this era brought a revolution in the transport of people and goods, and consequently great social change.